Lucidly, and without partisan rhetoric, Charles Ferguson’s not-to-be-missed documentary, “No End in Sight,” lays out the disastrous missteps of the U.S. occupation of Iraq. The magnitude of the errors perpetrated by the Bush administration’s ignorance, incompetence, arrogance, bad or nonexistent planning, crony ism and naivety can make you weep with anger. We hear about jobs in Iraq handed to the sons of Bush campaign donors, of the young woman put in charge of managing traffic in chaotic Baghdad despite never having studied traffic control or Arabic.